On 30 January 2016 at 16:42, Ian Kelly <ian.g.ke...@gmail.com> wrote: >> AFAICT there's no generator-function-style syntax for writing an async >> iterator so you'd have to make a class with the appropriate methods if >> you wanted to be able to loop over aslice with async for. > > Before you go any further with this, be sure to check out the aitertools > third-party module. I haven't done anything with it myself, but it already > claims to provide aiter and anext as well as async versions of everything > in the standard itertools module.
Right you are. There is aslice and it is implemented as a class with __anext__ etc. methods: https://github.com/asyncdef/aitertools/blob/master/aitertools/__init__.py#L747 My original suggestion just becomes: from aitertools import alist, islice rows = await alist(islice(cur, 2)) # pull at most 2 rows -- Oscar -- https://mail.python.org/mailman/listinfo/python-list
